I left my horse (with a nametag, golden horse armour and a saddle) in a fenced area with a couple of other horses. I come back to my world the next day and the horse is gone.

I left my horse (with a nametag, golden horse armor, and a saddle) in a fenced area with a couple of other horses. I come back to my world the next day, and the horse is gone. I have tried closing and reopening Minecraft but nothing is working. I have not let the horse out at all and the fenced area is 2 fences high so he could not have jumped out. I am using the windows 10 edition of Minecraft. I hope that this is the correct place to post this glitch. I really need help with fixing this glitch because I really need my horse. The horse with the golden armor seen in the photo below is my friend's horse (he also plays on this world sometimes)